Document Detail

Mass spectrometric quantitation of muramic acid, a bacterial cell wall component, in septic synovial fluids.
MedLine Citation:
PMID:  2679561     Owner:  NLM     Status:  MEDLINE    
This is the first report describing the use of gas chromatography-mass spectrometry for detection of muramic acid in infected synovial fluid (SF). Muramic acid is a ubiquitous component of bacterial cell walls, and it has been proposed that it could serve as a chemical marker for the presence of live bacteria or bacterial debris in rheumatoid joints. Our goal was to determine whether muramic acid was present at detectable levels in septic SF, since this would serve as a positive control for studies of reactive and rheumatoid arthritis. Muramic acid was found to be present at levels of less than 250-1,700 ng/ml in 12 septic SF samples (10 of which were culture positive for Staphylococcus aureus and 1 each for Escherichia coli and Streptococcus pneumoniae). Among these samples, those containing low bacterial colony counts did not contain detectable muramic acid. Muramic acid was also not detected in any SF samples from 20 control patients. We conclude that muramic acid can be used as a marker for the presence of bacterial peptidoglycan in SF. With further lowering of gas chromatography-mass spectrometry detection limits, determination of the quantities of bacterial debris present in joints of patients with rheumatoid or reactive arthritis will be attainable.
B Christensson; J Gilbart; A Fox; S L Morgan
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Arthritis and rheumatism     Volume:  32     ISSN:  0004-3591     ISO Abbreviation:  Arthritis Rheum.     Publication Date:  1989 Oct 
Date Detail:
Created Date:  1989-11-08     Completed Date:  1989-11-08     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0370605     Medline TA:  Arthritis Rheum     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1268-72     Citation Subset:  AIM; IM    
Department of Infectious Diseases, University Hospital, Lund, Sweden.
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MeSH Terms
Cell Wall / analysis
Escherichia coli Infections / metabolism
Gas Chromatography-Mass Spectrometry
Muramic Acids / analysis*
Staphylococcal Infections / metabolism
Streptococcus pneumoniae
Sugar Acids / analysis*
Synovial Fluid / analysis*,  microbiology
Synovitis / metabolism*,  microbiology
Grant Support
Reg. No./Substance:
0/Muramic Acids; 0/Sugar Acids

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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